Warm mist humidifier refinement



FIG. 1 is a top perspective view of a warm mist humidifier refinement showing our new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a front elevation view thereof;

FIG. 4 is a right side elevation view thereof;

FIG. 5 is a left side elevation view thereof; and,

FIG. 6 is a rear elevation view thereof opposite from the side shown in FIG. 3.

The bottom view forms no part of the claimed design. The subject matter shown in broken lines forms no part of the claimed design. 

The ornamental design for a warm mist humidifier refinement, as shown and described. 